Malicious PDF — malware analysis report

Static analysis result for SHA-256 6570905e455d8f16…

MALICIOUS

PDF

547.0 KB Created: 2022-03-09 14:09:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-08
MD5: 8dac00ee7c8664f1e73029a3079f06c6 SHA-1: 86b03ea9aae25fbde400a132283fe6b586adc62d SHA-256: 6570905e455d8f160cc0a7069162e990fbe0d20bf943695d1d174e4977349346
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5031

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://phutungquanghieu.com/app/webroot/files/ckfinder/files/xivin.pdf In PDF document text
    • http://utuin.net/files/fckeditor/file/65799635954.pdfIn PDF document text
    • https://wsbe17hongkong.hk/_bin/ckfinder/userfiles/files/12229170425.pdfIn PDF document text
    • https://thingstodobahrain.net/ckfinder/userfiles/files/fawekifipapifaduni.pdfIn PDF document text
    • http://avanti.pl/userfiles/file/motowatu.pdfIn PDF document text
    • https://santevita-bg.com/ckfinder/userfiles/files/88841591957.pdfIn PDF document text
    • http://loaamtran.vn/files/usersfiles/files/15518816473.pdfIn PDF document text
    • http://alvit-bk.ru/userfiles/file/2528796966.pdfIn PDF document text
    • https://askisan.com/upload/ckfinder/files/28595293858.pdfIn PDF document text
    • http://bangladeshceramicsociety.com/uploads/editor/files/gozebubitipuvopazopo.pdfIn PDF document text
    • https://jgranit.pl/userfiles/file/51257558783.pdfIn PDF document text
    • http://uhy-th.com/image/upload/files/nilabuz.pdfIn PDF document text
    • http://alhegazgroup.com/userfiles/file/97239578508.pdfIn PDF document text
    • http://belcanto-evenements.com/media/files/66573392704.pdfIn PDF document text
    • https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/1620c767dd46c3---26616571652.pdfIn PDF document text
    • https://casartigianiudine.busletter.it/ckfinder/userfiles/files/fobemij.pdfIn PDF document text
    • http://poltinik.ru/userfiles/file/38767435554.pdfIn PDF document text
    • http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16217c03448cea---90064672636.pdfIn PDF document text
    • https://k-barrierfree.com/FileData/ckfinder/files/20220220_9EC8B3F83E732BF7.pdfIn PDF document text
    • http://jg-academy.com/uploads/FCKeditor/file/wazorozekavufe.pdfIn PDF document text
    • http://nanchang.chinatupai.com/web/js/ckfinder/userfiles/files/78739418059.pdfIn PDF document text
    • https://www.voyagegroupepascher.fr/public/kcfinder/upload/files/76776081324.pdfIn PDF document text
    • https://sofupingame.net/calisma2/files/uploads/wexenudazijaxur.pdfIn PDF document text
    • https://muacash.com/webroot/img/files/42689110700.pdfIn PDF document text
    • https://angem.fr/userfiles/file/75193589237.pdfIn PDF document text
    • http://harckocsik.hu/userfiles/file/63866531726.pdfIn PDF document text
    • http://hongshengfish.com/uploadfiles/2022021105551682120.pdfIn PDF document text
    • https://www.uncme.org.br/Gerenciador/kcfinder/upload/files/linokukarenijitujotesa.pdfIn PDF document text
    • https://colod.co.za/XSRYdR1H?utm_term=national+agriculture+information+servicesPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off000819aa.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000819aa.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000819aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x819AA 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off000830ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x830CA 10824 bytes
SHA-256: 12985560c0d5faa36e5991a769a808f67cedc7238bff35b7da4528149673e689
font_02_sfnt_off000849d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x849D8 18616 bytes
SHA-256: afcd6ab66921a20fb81a683be984cfd185e4fea5585f4b9b058d7d0221b9f441